Research on the Application of SAR Differential Interferometry Technology in Monitoring Surface Deformation of Transmission Lines

There are more and more high-voltage, high-power and long-distance transmission lines, the geographical environment along the transmission network is becoming more and more complicated, and the frequency of geological disasters around transmission facilities is getting higher and higher, which makes the monitoring and protection of transmission facilities more and more difficult. It is necessary to periodically monitor the surface subsidence along the transmission network. Effective monitoring can find out the hidden dangers in the transmission network in time, deal with the hidden areas in time, and reduce the threat of geological disasters to the power grid system. In this article, the application of SAR differential interferometry (D-InSAR) technology in surface deformation monitoring is introduced, and the data processing flow of D-InSAR based on constrained clustering algorithm is proposed. The accuracy and processing efficiency of the data processing algorithm are verified by simulation experiments. The simulation results show that after many iterations, the error of this method is obviously better than the comparison algorithm in D-InSAR data processing, and the error is reduced by 35.77
^%
, and the simulation running time is reduced. The results show that the prediction accuracy and operation efficiency of the proposed method are improved to some extent compared with the traditional algorithm. The research shows that the D-InSAR data processing method based on constrained clustering algorithm can improve the accuracy and efficiency of ground deformation monitoring of transmission lines, and assist D-InSAR technology to accurately monitor the geological deformation around transmission facilities.